The Shaft,propulsion,ship, cataloged under National Stock Number 2010-00-256-2040, is classified within Federal Supply Class 2010 (Ship and Boat Propulsion Components) of the Ship and Marine Equipment group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2010-00-256-2040 |
| Item Name | Shaft,propulsion,ship |
| FSC / FSG | 2010 / 20 — Ship and Boat Propulsion Components |
| Status | ACTIVE |
| Forward Bearing Sleeve Length | 4.000 FEET NOMINAL FT |
| Surface Finish | SMOOTH MACHINED |
| Material Document and Classification | MIL-B-15939 MIL SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 6.500 INCHES NOMINAL IN |
| Forward End Design | STRAIGHT |
| Thread Length | 2.875 INCHES IN |
| Forward Bearing Sleeve Outside Diameter | 6.755 INCHES NOMINAL IN |
| Forward End Diameter | 6.7515 INCHES NOMINAL IN |
| Inside Diameter | 4.250 INCHES NOMINAL IN |
| After Bearing Sleeve Outside Diameter | 6.755 INCHES NOMINAL IN |
| Unit Type | PROPELLER SHAFT SECTION |
| Intermediate Bearing Sleeve Outside Diameter | 6.755 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| After Bearing Sleeve Length | 2.833 FEET NOMINAL FT |
| Major Diameter | 7.750 INCHES NOMINAL IN |
| Furnished Items and Quantity | CONTROL ROD,1 |
| Thread Quantity | 2 PER INCH |
| Construction | HOLLOW |
| Usage Location | PORT/STARBOARD |
| Intermediate Bearing Sleeve Length | 3.333 FEET NOMINAL FT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AM421S4400-1022156 | 5/2 Secondary reference U.S. Government activity |
| AM421S4400-1022156PC101 | 3/2 Design control — primary reference U.S. Government activity |
| AM421S4400-10221156PC101 | 5/2 Secondary reference U.S. Government activity |
NSN 2010-00-256-2040 is a Shaft,propulsion,ship, classified under FSC 2010, Ship and Boat Propulsion Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2010-00-823-5052. Verify interchangeability with system specifications before substitution.
Key specifications for 2010-00-256-2040: Forward Bearing Sleeve Length: 4.000 FEET NOMINAL FT; Surface Finish: SMOOTH MACHINED; Material Document and Classification: MIL-B-15939 MIL SPEC SINGLE MATERIAL RESPONSE; Overall Length: 24.112 FEET NOMINAL FT. 20 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.